Pipe-coupling machine.



- J. M. vviNNlNGHAM.

PIPE COUPLING MACHINE. APPLICATION man l1AN.25.|91.

1,242,627. Patented Oct. 9,1917.

3 SHEETS- SHEET I.

wilma/bow J. IVI. WINNINGnH/HVI.v

lPIPE couPuNG MACHINE. APPLICATION FILED IAN25|1916.

.-Igga Patented Oct. 9, 1917.

3 SHEETS-SHEET 2- 1'. M.. WINNINGHAM.

PIPE COUPLING MACHINE.

APPLICATION FILED 1AN,25. I96.

Patented Oat. 9, 19I7.

3 SHEETS-SHEET 3.

A m Y ,MN n@ a/ z m a pf M j. 2... J 2 /2 ya. L ,H/ i@ f W JAivLEs'r/r. WINNINGHAMgLorHENDEitsoN, *rnnlviiss'uu PIPE-iCOUPLING MACHINE.-

retrasar.

Application inea January 25, i916. serial No. 74,115.

Tall rfi/"wm t may Concern.' y y Be it known that'T, J'Aims M. WINNING- HAM, citizen of the United States, resid-ing at Henderson, in the county of'Chester and State-of Tennessee, have invented'a certain new and useful Pipe-Coupling Machine, of which the following is a specification.

This invention Vrelates to pipe .connecting and has special reference to a machine for connecting sheet metalpipes by forming a, pair of coacting beads in the overlappedfp'ortions of such pipes as down-spente, :stove pipes and the like. l

@ne robject of the invention is to provide an imprm'ed andsimplified general construction fer machines-of this character.

A second object of the invention is to provide ain improved machine .vherein the ientirefperiphery'of the beads willrv he formed ait the same time. v

lVith the ahove and other objects in view, as will yhe hereinafterI appa/rent, tlie--iiivention-consists in general of certain novel features of construction -fand ucombinations of partshereinafter' fully described, illustrated :in the accompany-ing.drawings and set vforth in thel claims. fr

In the accompanying drawings like .chan acters. of 'reference indicate like parts in the several viervsyandz.- 1

.Figure 1 is a longitudinal sectional view of the `ldevice as applied to 'a pipe joint in readiness to head the same.

Fig. 2 is a face View of .one form Jof a set of expanding blocks in ytheir fully expanded position.

Fign3 is a section'on thefline 3---3y of Fig. 2. Y

Fig. il is a face vieuv of a second form of a set of expanding blocks in their fully en panded position.

Fig. 5 is a section on the line v5-5 of Fig. el.

Fig. 6 is a perspective view of a female die suitable for use with the irst set of blocks.

Fig. 7 is a perspective vievv of a female die suitable for use With the second set of blocks.

F 8 is a detail showing a modified form of expansion means.

Fig. 9 is a vievv similar to Fig. 1 but of a modified form.

Fig. 10 is a face view, on a larger scale, of the expanding blocks of Fig. 9 showing the parts in their fully expanded position.

In the embodiment of the invention herein illustrated in Figs. 1 to 3, there is provided.

Spcification of Il'i'ttersV Patent.' i

ratenteaoeae, 1era.

an expansion mandrel@indicated in'general lat A andythis mandrel-is provided with a die block 10`resting;against aY body 11y pro.- vided With a cov-er. plate The body) 11 and :cover plate'12 are providedvvith opposed ypolygonal vrecesses 13 wherein fits a nut 14 sothat theV nut is prevented from turning Withrespect to body 11 and plate 1 2.

Thisbody 11, plate l- ,anddie blockor head V10 are secured together by bolts 15. The die block 10 is provided With'a centrally disposed .frusto-conical ropening 16 and eX- tendingfrom this openingis a radial open.

ing 1.7 for the receptionl `of dieinembers 1S Witch are' provided with guide portionsvl).

fitting in slots 20 and with lugs 21 moving in slots 22. .Between thelouter ends of the slots* QQ'and the lugs: 21 areinterposed' springs23 which constantly urge the' dies 18 inward. Thedie block 10 is` preferably made in two yparts to permit assembling and secured to the iblockis a flange member' 2st to .which is iiXed a'tubular handle 25 'carry-A ing at its yend a bearing .26 preferably polygonal-1in .contour Iso tha-tf itv kcan "be mounted immovablyin ai standard 537 fixed to a base 28. However, 'this standardand base may-.be dispensed with if desired,-` the handle ,being simply manually supported. Y

The body-1l vis provided `With 5a frustoconical recess 23FLY terminati-ng` in an lopening 29 .communicating Withlthe nut\recess 13 and .from this nut recess', in the coverplate, extends fan opening -30. Y'

Through the bearing 26' 'and nut .14E extends a shaft 31, the shaft being provided With a threaded. 'portiony -32 Where itip'asse's through theJ-nut 14 so that, as the shaft is rotated, it Will move longitudinally of vthe head. This shaft is provided on its end with a crank arm 33 having a handle 34 by means of which the shaft may be rotated.

Mounted on this shaft 31 is the expanding member which consists of'a cone 35 carrying a nut 36 vmounted on an enlarged and threaded 'portion 37 of the shaft 31. This cone 35 is locked in position by a jam nut 38 and bears against the inner ends of the die members 18. l Y

In the form shown in Figs. 2 and 3 these diemembers are arcuate in contour and their contacting surfaces are beveled as at 39 so that, as the lateral members expand, the upper and lower members will also move outward.

In the form shown in Figs. 4 and 5 only neeaear the corner members 18a contact with the cone, the lateral members 18b being forced outward by the angular disposition of the beveled contacting surfaces 39a.

Each of these forms has the different members of the respective set of dies provided with a peripheral bead 40 arranged to coact with a groove 41 formed within a two part matrix or female die, the lower part of which is indicated at 42 and is preferably fixed on the base 28 while the upper part 43 is hinged to the lower at one side by a hinge 44 and can be locked to the lower part at the opposite side by a catch 45.

rlhe form shown in Fig. 8 varies somewhat from the cone expander since a fixed collar 46 is employed which is connected by diagonal links 47 to the dies 18, the collar being locked to the shaft 31 by a nut 48 or any other suitable means.

In the form shown in Figs. 9 and 10 the shaft 31 is replaced by a plain shaft 49 which passes through a bearing 50 replacing the nut 14. @n each side of this bearing is a collar 51 secured to the shaft. Between the inner arcuate ends 52 of opposite members 18 there is fixed to the shaft 49 an elliptical cam 53 so proportioned that, when the shaft 49 is given one-quarter ofa revolution the members 18 will be forced out to their farthest extent. This last form is especially adapted for light work where no great expansive force is required.

In operation two sections of pipe are assembled as shown in Fig. 1 on the mandrel, the dies being collapsed and the outer or female die member open. The outer ymember is then closed and the crank turned until the dies are forced out and the sections of pipe crimped into the groove of the female die or outer member. rlhe handle is next turned to permit collapse of the dies and the outer female die member opened. rlhe pipe may then be withdrawn from the mandrel.

rlhere has been provided a simple and efiicient device of 'the kind described and for the purpose specified.

Having thus described the invention, what is claimed as new, is:

ln a pipe coupling machine, a base, a two-part female die member having its lower part fixed to said base and the upper part removable from the lower part, means for locking the parts together, a standard fixed to said base and spaced from said female die member, an elongated tubular member fixed in said standard and projecting toward the female die member, an expansion mandrel fixedy to the end of said tubular member and comprising a body having a longitudinal recess opening into said tubular member, a radial opening in said body extending from said recess to the periphery of the body, a series of male die members arranged in said radial opening in line with said female die memberl and having coacting inclined edges, means for normally projecting the inner ends of said male die members into said recess, a shaft mounted in said standard and extending through the tubular member and into the recess in the body of said mandrel and rotatably supported in the outer end of said mandrel, means on said shaft for engaging the projecting ends of the male die members upon the rotation of the shaft to cause them to move outwardly toward the female die member, whereby two sections of pipe may be placed in the machine and their ends overlapped between the male and female die members and a continuous bead formed therein to connect said pipe sections.

ln testimony whereof, l affix my signature, in the presence of two witnesses.

JAliES M. VVlNNlNGHAM.

Witnesses W. E. GIBSON, lt. C. DAvIDsoN.

Copies of this patent may vbe obtained for ve cents each, by addressing` the Commissioner of Patents. Washington, 1D. C. 

